Tubular leg clamp



FIG. 1 is a front left perspective view of a tubular leg clamp showing my new design;

FIG. 2 is a front elevational view thereof, the broken line showing of the leg in section is for illustrative purposes only;

FIG. 3 is a side elevational view as seen from the right of FIG. 1;

FIG. 4 is a bottom plan view thereof; 

The ornamental design for tubular leg clamp, substantially as shown and described. 